Environment-friendly municipal road and bridge engineering waste recovery device and treatment method thereof

Abstract

The invention provides an environment-friendly municipal road and bridge engineering waste recycling device and a treatment method thereof, and belongs to the technical field of construction waste recycling, the environment-friendly municipal road and bridge engineering waste recycling device comprises a box body and a multi-heavy-metal removing assembly, the top of the box body communicates with a feeding shell, and hydraulic cylinders are fixedly connected to the two sides of the feeding shell correspondingly; and the output ends of the opposite sides of the two hydraulic cylinders penetrate through the feeding shell and are fixedly connected with crushing jaws. According to the multi-heavy-metal removing assembly, ferromagnetic metal in crushed materials is preliminarily separated through the magnetic separation mechanism, then non-ferrous metal is deeply separated through the eddy current separator, and the two separation modes achieve the synergistic effect; non-magnetic metal such as aluminum and copper mixed in fine particles and fine scrap iron attached to the surface of waste or embedded into the waste are effectively removed, the thoroughness of metal impurity separation is improved, the situation that the mechanical property and durability of recycled aggregate are affected due to the fact that the metal impurities are left in the recycled aggregate is avoided, and therefore the product grade and application safety of the recycled aggregate are guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of construction waste recycling, and specifically relates to an environmentally-friendly municipal road and bridge engineering waste recycling device and a treatment method thereof. BACKGROUND

[0002] Municipal road and bridge engineering waste recycling refers to the process of recycling and circular utilization of construction waste such as waste concrete, steel bars, asphalt and formwork generated in the process of new construction, reconstruction or maintenance of municipal roads, bridges and other infrastructure through collection, classification, transportation, crushing, screening and regeneration. The core is to convert the waste generated in the construction process into renewable materials that can be put back into production, which not only reduces the occupation of land resources by garbage landfill, but also reduces the damage to the ecological environment caused by raw material mining, and at the same time meets the policy guidance of the national green construction and carbon neutralization target. Finally, through technological innovation and process optimization, economic and environmental benefits are doubled.

[0003] For example, the invention disclosed in Chinese Patent No. CN215087566U discloses a waste recycling device for road and bridge engineering construction, and the technical scheme is as follows: a crushing box body is provided, two driving shafts are installed in the inner cavity of the crushing box body in a transverse direction, two crushing rollers are installed on the outer walls of the two driving shafts, and the two crushing rollers are symmetrically installed in the inner cavity of the crushing box body. The same end of the two driving shafts is provided with a synchronous mechanism, and the side wall opposite to the synchronous mechanism of the crushing box body is fixed with a driving motor through bolts. The utility model can place a waste collection hopper on both sides of the guide plate. When one side of the waste collection hopper is full, the rotation of the supporting shaft is driven by rotating the switching rocker arm, so that the guide plate is inclined to the other side, and the crushed waste can be discharged into the other collection hopper, avoiding the need to stop or stop the waste feeding to replace the collection hopper, and improving the crushing treatment efficiency of the waste.

[0004] For example, the invention disclosed in Chinese Patent No. CN111659489B discloses an environmentally friendly garbage recycling device for municipal road and bridge engineering supervision and a processing method. The technical solution points are as follows: the inlet hopper is connected to the left upper part of the machine cover, the left crusher is fixed to the left side wall of the machine cover, the right crusher has a cam matching groove at the back, the drive cam is located in the cam matching groove and connected to the drive large wheel disc through the wheel shaft, the drive small wheel disc is provided on the shaft of the crushing motor, the drive large wheel disc drives the drive small wheel disc to rotate, the grinding shaft is provided with a spiral blade and connected with a speed reducer and a grinding motor at the right end, the bottom wall of the compression area is provided with a water flow hole, the top wall is provided with an exhaust port, the left part of the compression area is provided with a compression cylinder, and the right part is provided with a heating resistance wire. The cylinder shaft of the compression cylinder is connected with a compression plate, the inside of the water storage area is provided with a water pump, the water pump is connected with the water spray ring through the connecting water pipe, and the water spray ring is provided with a water outlet. The invention can effectively recycle and reuse waste, is environmentally friendly, and is suitable for wide application in garbage recycling.

[0005] Although the above-mentioned patent can control the use angle of the guide plate to tilt to one side during the discharging process according to the needs, facilitate non-stop discharging, and spray water on the waste during the crushing process to prevent dust from being generated during the crushing process, and recycle and reuse the water in the waste to improve the environmental protection effect, the above-mentioned patent has the problem that the separation of metal impurities is not complete, which affects the quality of the recycled materials. Although a simple single-point magnetic separation method can be used to collect the metal, it is ineffective for non-ferrous metals mixed in the fine particles after crushing, and the separation effect of fine iron filings attached to the surface of the waste or embedded in the concrete block is poor, resulting in the presence of various metal impurities in the recycled aggregate, which seriously affects the mechanical properties and durability of the recycled concrete, causes internal rust expansion or forms a conductive path, thereby reducing the product grade and application safety of the recycled materials, and cannot meet the production needs of high-standard building materials. SUMMARY

[0006] Based on the problems of the prior art, the present invention provides an environmentally friendly municipal road and bridge engineering waste recycling device and a processing method, which is suitable for municipal road and bridge engineering waste recycling.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: An environmental protection type municipal road and bridge engineering waste recycling device, comprising a box body and a multiple metal removal assembly, the top of the box body is communicated with a feeding shell, the two sides of the feeding shell are fixedly connected with hydraulic cylinders, the output ends of the opposite sides of the two hydraulic cylinders are all penetrated through the feeding shell and are fixedly connected with crushing jaws, a crushing roller is installed between the two sides of the inner cavity of the box body, a vibration conveying and dispersing mechanism is arranged at the bottom of the inner cavity of the box body, the multiple metal removal assembly comprises a mounting frame, the left side of the mounting frame is fixedly connected with the box body, a magnetic separation mechanism is arranged at the bottom of the mounting frame, a conveyor is fixedly connected to the right side of the box body, a vibration material ejection mechanism is arranged between the front side and the rear side of the inner cavity of the conveyor, a eddy current separator is fixedly connected to the bottom of the conveyor, a material guide shell is fixedly connected to the bottom of the right side of the box body, and a negative pressure adsorption light impurity stripping mechanism is arranged at the top of the right side of the box body. The feeding shell facilitates the entry of construction waste into the box body, the hydraulic cylinder can control the reciprocating movement of the crushing jaw, the crushing jaw can continuously crush the construction waste during movement to make it into small pieces, the crushing roller can crush the small pieces of construction waste into particles, which facilitates subsequent metal impurity separation operation, the mounting frame facilitates the installation and fixation of the magnetic separation mechanism, the magnetic separation mechanism can separate the magnetic metal in the construction waste particles, the vibration material ejection mechanism continuously lifts the construction waste particles, so that some small metal fragments can also be captured by the magnetic separation mechanism, improving the separation effect, the conveyor is used for conveying the construction waste particles, the eddy current separator can separate the non-magnetic metal in the construction waste particles, avoiding the presence of metal particles in the recycled construction waste particles, and the negative pressure adsorption light impurity stripping mechanism can recycle the dust generated during separation, avoiding pollution of the surrounding working environment.

[0008] Preferably, the vibration conveying and dispersing mechanism comprises a gradient plate, a reset mechanism is arranged between the bottom of the gradient plate and the two sides of the inner cavity of the box body, a vibration motor is fixedly connected to the bottom of the gradient plate, and a discharge opening is formed in the right side of the box body. The gradient plate can facilitate the conveying of the construction waste particles, and can cooperate with the reset mechanism and the vibration motor to disperse at the same time, preventing the construction waste particles from being stacked together and improving the separation effect of the metal waste in the construction waste particles, and the discharge opening can facilitate the discharge of the construction waste particles from the box body to the top of the conveyor.

[0009] Preferably, the reset mechanism comprises a reset shell, the bottom of the reset shell is fixedly connected with the inner wall of the box body, the inner cavity of the reset shell is provided with a limiting plate, the bottom of the limiting plate is fixedly connected with a reset spring, the top of the limiting plate is fixedly connected with a supporting plate, the top of the supporting plate penetrates through the reset shell and is fixedly connected with the gradient plate, the reset shell can cooperate with the limiting plate and the reset spring to control the supporting plate and the gradient plate to continuously vibrate up and down, thereby improving the use effect of the vibration motor and accelerating the dispersion speed of the construction waste particles.

[0010] Preferably, the magnetic separation mechanism comprises a magnetic separation conveyor, a magnetic plate is fixedly connected between the bottom of the front side and the rear side of the inner cavity of the magnetic separation conveyor, a guide plate is fixedly connected to the rear side of the inner cavity of the mounting bracket, and a discharge shell is mounted on the front side of the magnetic separation conveyor, the magnetic plate can enable the conveying belt at the bottom of the magnetic separation conveyor to have magnetic attraction capability, thereby enabling the fine metal particles in the construction waste particles lifted to be adsorbed and conveyed to the top of the magnetic separation conveyor, the guide plate can guide the metal waste to be conveyed to the inside of the discharge shell, and the discharge shell can discharge the metal particles.

[0011] Preferably, the vibration and elastic material mechanism comprises two fixed frames, the opposite sides of the two fixed frames are fixedly connected with the inner walls of the conveyors, and the opposite sides of the two fixed frames are both provided with a vibration plate through a limiting mechanism, the top of the vibration plate is fixedly connected with a flexible top rod, the rear side of the conveyor is fixedly connected with a driving motor, the front side of the output end of the driving motor penetrates into the inner cavity of the conveyor and is fixedly connected with a rotating shaft, and the front side and the rear side of the surface of the rotating shaft are both fixedly connected with a cam, the fixed frame can facilitate the installation of the vibration plate, the flexible top rod can continuously press the conveying belt, so that the construction waste particles conveyed on the top of the conveying belt are continuously lifted upward, thereby facilitating the separation of the metal particles therein, the driving motor can cooperate with the rotating shaft to control the rotation of the cam, and the rotation of the cam can cooperate with the limiting mechanism to control the vibration plate to continuously move up and down reciprocatingly.

[0012] Preferably, the limiting mechanism comprises a slide rod, the top and the bottom of the slide rod are fixedly connected with the fixed frame, and a vibration spring and a slide sleeve are sequentially sleeved on the surface of the slide rod from top to bottom, the two sides of the vibration plate are fixedly connected with the slide sleeve, and the slide rod and the slide sleeve can cooperate with the vibration spring to limit the vibration plate, so that the vibration plate can continuously control the flexible top rod to press the conveying belt in cooperation with the cam.

[0013] Preferably, the negative pressure adsorption light impurity stripping mechanism comprises a sealing cover, the left side of the sealing cover is fixedly connected with the box body, the top of the right side of the inner cavity of the sealing cover is fixedly connected with a filter shell, the bottom of the filter shell is communicated with an exhaust hood, the right side of the filter shell is communicated with an exhaust fan, the inner cavity of the filter shell is provided with a filter screen, the left side of the filter screen is fixedly connected with a sealing baffle, the sealing cover can cooperate with the exhaust fan to exhaust the air in the filter shell, the exhaust hood can suck the dust generated in the process of separating the construction waste particles into the filter shell, and the filter screen can filter the dust to avoid scattering and polluting the surrounding environment.

[0014] Preferably, the right side of the sealing baffle is fixedly connected with the filter shell through bolts, the front side and the rear side of the inner cavity of the exhaust hood are fixedly connected with a shielding protective net, the front side and the rear side of the left side of the sealing baffle are fixedly connected with handles, the bolted sealing baffle can be quickly disassembled and installed, the shielding protective net can prevent large-volume impurities from entering the filter shell, and the handles facilitate the disassembly of the sealing baffle by the workers.

[0015] Preferably, the right side of the conveying machine is fixedly connected with a material blocking plate, and the bottom of the box body is fixedly connected with a stable support, and the top of the inner cavity of the stable support is provided with a material receiving shell.

[0016] A use method of the environmental protection type municipal road and bridge engineering waste recycling device, comprising the following steps: S1, conveying the bridge engineering waste to be recycled to the inside of the feeding shell, starting the hydraulic cylinder, controlling the left and right reciprocating movement of the crushing jaw through the hydraulic cylinder, preliminarily crushing the construction waste by the two crushing jaws, and making the crushed construction waste enter the inside of the box body, and then crushing the waste into particles by the rotating crushing roller, and making the crushed waste fall above the gradient plate; S2, starting the vibration motor, generating high-frequency vibration by the working vibration motor, and controlling the vibration of the support plate and the gradient plate by the cooperation of the return spring and the limiting plate, so that the waste particles on the top are uniformly spread and transported to the top of the conveyor at the same time; and S3, starting the magnetic separation conveyor to adsorb the metal fragments in the waste particles transported to the top of the conveyor, and starting the driving motor at the same time, controlling the rotation of the cam through the cooperation of the driving motor and the rotating shaft, continuously extruding the vibration plate through the rotation of the cam, and making the vibration plate continuously extrude the conveying belt of the conveyor through the cooperation of the sliding rod, the sliding sleeve and the vibration spring, so that the conveying belt continuously vibrates and lifts the waste particles, and the mixed fine metal particles are captured by the magnetic separation conveyor, and the metal particles adsorbed by the magnetic separation conveyor are guided to the discharge shell through the guide plate. S4. The magnetically separated construction waste particles are conveyed to the top of the eddy current separator by the conveyor. The eddy current separator discharges the remaining non-magnetic metal particles, such as aluminum and copper, into the inside of the guide shell. The non-magnetic metal particles are discharged through the guide shell, and the remaining waste particles enter the receiving shell. Through the integrated design, the active separation of metal waste can be automatically completed during the construction waste recycling process. S5. During the separation of metal waste, the exhaust fan is turned on. The exhaust fan discharges the air inside the filter housing. At the same time, the outside air carries the dust generated during the separation and crushing process into the inner cavity of the exhaust hood. The exhaust hood transports the dust to the inside of the filter housing, where the filter screen filters the dust, thus avoiding the generation of a large amount of dust that pollutes the surrounding environment during the recycling of construction waste and improving its environmental protection effect.

[0017] Compared with existing technologies, the advantages and positive effects of the environmentally friendly municipal road and bridge engineering waste recycling device and its treatment method of the present invention are as follows: 1. This invention utilizes a multi-metal removal component, employing a magnetic separation mechanism to initially separate ferromagnetic metals from crushed materials, and then combining this with an eddy current separator for deep separation of non-ferrous metals. The synergistic effect of these two separation methods effectively removes non-magnetic metals such as aluminum and copper mixed in fine particles, as well as fine iron filings adhering to the surface or embedded within the waste material. This improves the thoroughness of metal impurity separation, preventing metal impurities from remaining in the recycled aggregate and affecting its mechanical properties and durability. Consequently, it ensures the product grade and application safety of recycled materials, meeting the production requirements of high-standard building materials.

[0018] 2. This invention utilizes a negative pressure adsorption and light impurity stripping mechanism, which uses an exhaust fan to generate negative pressure suction to draw dust generated during crushing and sorting into the filter housing through an exhaust hood. The dust is then filtered and collected by the filter screen, achieving active capture and centralized treatment of dust. This avoids dust overflow and pollution of the working environment, improves operating conditions, reduces negative impacts on the surrounding ecological environment, and enhances the environmental friendliness of the recycling process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram based on the present invention; Figure 2 This is a cross-sectional view of the housing according to the present invention; Figure 3 This is a cross-sectional view of the reset shell according to the present invention; Figure 4 This is a schematic diagram of the magnetic separation mechanism according to the present invention; Figure 5 An exploded view of the magnetic separation mechanism according to the present invention; Figure 6 A schematic diagram of a conveyor and an eddy current separator according to the present invention; Figure 7 isometric view of the conveying machine according to the present application; Figure 8 isometric view of the vibrating material ejection mechanism according to the present application; Figure 9 schematic view of the negative pressure adsorption light impurity stripping mechanism according to the present application; Figure 10 isometric view of the negative pressure adsorption light impurity stripping mechanism according to the present application.

[0020] Explanation of reference numerals in the drawings: 100, box; 200, feeding shell; 300, hydraulic cylinder; 400, crushing jaw; 500, crushing roller; 600, vibrating conveying and dispersing mechanism; 700, multiple metal removal assembly; 710, mounting frame; 720, magnetic separation mechanism; 730, conveyor; 740, vibrating material ejection mechanism; 750, eddy current separator; 760, material guiding shell; 800, negative pressure adsorption light impurity stripping mechanism; 610, gradient plate; 620, reset mechanism; 630, vibrating motor; 621, reset shell; 622, limit plate; 623, reset spring; 624, support plate; 721, magnetic separation conveyor; 722, magnetic force plate; 723, guide plate; 724, discharge shell; 741, fixing frame; 742, limiting mechanism; 743, vibrating plate; 744, flexible ejector rod; 745, driving motor; 746, rotating shaft; 747, cam; 7421, sliding rod; 7422, vibrating spring; 7423, sliding sleeve; 810, sealing cover; 820, filter shell; 830, air extraction cover; 840, filter screen; 850, sealing baffle; 860, shielding protective screen; 870, exhaust fan; 900, stabilizing support. DETAILED DESCRIPTION

[0021] In order to enable persons skilled in the art to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, and therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0023] The application adopts the technical scheme: an environmental protection type municipal road and bridge engineering waste recycling device, which comprises a box body 100 and a multiple metal removal assembly 700, the top of the box body 100 is communicated with a feeding shell 200, the two sides of the feeding shell 200 are fixedly connected with hydraulic cylinders 300, the output ends of the opposite sides of the two hydraulic cylinders 300 are all penetrated through the feeding shell 200 and are fixedly connected with crushing jaws 400, a crushing roller 500 is installed between the two sides of the inner cavity of the box body 100, a vibration conveying and dispersing mechanism 600 is arranged at the bottom of the inner cavity of the box body 100, the multiple metal removal assembly 700 comprises a mounting frame 710, the left side of the mounting frame 710 is fixedly connected with the box body 100, a magnetic separation mechanism 720 is arranged at the bottom of the mounting frame 710, a conveyor 730 is fixedly connected with the right side of the box body 100, a vibration material bouncing mechanism 740 is arranged between the front side and the rear side of the inner cavity of the conveyor 730, a eddy current separator 750 is fixedly connected with the bottom of the conveyor 730, a material guiding shell 760 is fixedly connected with the bottom of the right side of the box body 100, and a negative pressure adsorption light impurity stripping mechanism 800 is arranged at the top of the right side of the box body 100.

[0024] By arranging the feeding shell 200, the building waste can enter the box body 100, the hydraulic cylinders 300 can control the crushing jaws 400 to move back and forth, the crushing jaws 400 can continuously crush the building waste during the movement to make it into small pieces, the crushing roller 500 can crush the small pieces of building waste into particles, which is convenient for subsequent metal impurity separation operation, the mounting frame 710 is convenient for mounting and fixing the magnetic separation mechanism 720, the magnetic separation mechanism 720 can separate the magnetic metal in the building waste particles, the vibration material bouncing mechanism 740 can continuously lift the building waste particles, so that some small metal fragments can also be captured by the magnetic separation mechanism 720, the separation effect is improved, the conveyor 730 is used for conveying the building waste particles, the eddy current separator 750 can separate the non-magnetic metal in the building waste particles, so that the recycled building waste particles do not contain metal particles, and the negative pressure adsorption light impurity stripping mechanism 800 can recycle the dust generated in the separation process, so that the dust does not pollute the surrounding working environment.

[0025] In addition, the vibration conveying and dispersing mechanism 600 comprises a gradient plate 610, a reset mechanism 620 is arranged between the bottom of the gradient plate 610 and the two sides of the inner cavity of the box body 100, a vibration motor 630 is fixedly connected with the bottom of the gradient plate 610, a discharge opening is formed in the right side of the box body 100, the reset mechanism 620 comprises a reset shell 621, the bottom of the reset shell 621 is fixedly connected with the inner wall of the box body 100, a limiting plate 622 is arranged in the inner cavity of the reset shell 621, a reset spring 623 is fixedly connected with the bottom of the limiting plate 622, a supporting plate 624 is fixedly connected with the top of the limiting plate 622, and the top of the supporting plate 624 penetrates through the reset shell 621 and is fixedly connected with the gradient plate 610.

[0026] Further, the gradient plate 610 can facilitate the conveying of construction waste particles, and can be dispersed in cooperation with the reset mechanism 620 and the vibration motor 630 while conveying, so as to prevent the construction waste particles from being stacked together, improve the separation effect of metal waste in the construction waste particles, and the discharge opening can facilitate the construction waste particles to be discharged from the box 100 to the top of the conveyor 730.

[0027] Preferably, the reset shell 621 can cooperate with the limiting plate 622 and the reset spring 623 to control the support plate 624 and the gradient plate 610 to continuously vibrate up and down, improve the use effect of the vibration motor 630, and speed up the dispersion speed of the construction waste particles.

[0028] In another embodiment, the magnetic separation mechanism 720 includes a magnetic separation conveyor 721, a magnetic force plate 722 fixedly connected between the bottom of the front side and the rear side of the inner cavity of the magnetic separation conveyor 721, a guide plate 723 fixedly connected to the rear side of the inner cavity of the mounting frame 710, and a discharge shell 724 mounted on the front side of the magnetic separation conveyor 721. The vibration material ejection mechanism 740 includes two fixed frames 741, the inner walls of the conveyor 730 are fixedly connected to the opposite sides of the two fixed frames 741, vibration plates 743 are mounted on the opposite sides of the two fixed frames 741 through limiting mechanisms 742, flexible top rods 744 are fixedly connected to the top of the vibration plates 743, a drive motor 745 is fixedly connected to the rear side of the conveyor 730, a rotating shaft 746 is fixedly connected to the front side of the output end of the drive motor 745 and penetrates into the inner cavity of the conveyor 730, cams 747 are fixedly connected to the front side and the rear side of the surface of the rotating shaft 746, and the limiting mechanisms 742 include slide rods 7421, the top and the bottom of the slide rods 7421 are fixedly connected to the fixed frames 741, vibration springs 7422 and slide sleeves 7423 are sequentially sleeved on the surface of the slide rods 7421 from top to bottom, and the two sides of the vibration plates 743 are fixedly connected to the slide sleeves 7423.

[0029] Further, the magnetic force plate 722 can enable the conveyor belt at the bottom of the magnetic separation conveyor 721 to have magnetic attraction capability, can adsorb fine metal particles in the construction waste particles that are raised, so that the fine metal particles can be conveyed to the top of the magnetic separation conveyor 721, the guide plate 723 can guide the metal waste, so that the metal waste can be conveyed to the inside of the discharge shell 724, and the discharge shell 724 can discharge the metal particles.

[0030] Preferably, the fixed frames 741 can facilitate the installation of the vibration plates 743, the flexible top rods 744 can continuously press the conveyor belt, so that the construction waste particles conveyed on the top of the conveyor belt are continuously raised upward, which facilitates the separation of metal particles therein, the drive motor 745 can cooperate with the rotating shaft 746 to control the rotation of the cam 747, and the rotation of the cam 747 can cooperate with the limiting mechanism 742 to control the vibration plates 743 to continuously reciprocate up and down.

[0031] Preferably, the slide rod 7421 and the slide sleeve 7423 can cooperate with the vibration spring 7422 to limit the vibration plate 743, so that it can cooperate with the cam 747 to continuously control the flexible top rod 744 to extrude the conveying belt.

[0032] With the technical scheme, the negative pressure adsorption light impurity stripping mechanism 800 comprises a sealing cover 810, the left side of the sealing cover 810 is fixedly connected with the box body 100, a filter shell 820 is fixedly connected to the top of the right side of the inner cavity of the sealing cover 810, an air extraction cover 830 is communicated with the bottom of the filter shell 820, an exhaust fan 870 is communicated with the right side of the filter shell 820, a filter screen 840 is arranged in the inner cavity of the filter shell 820, a sealing baffle 850 is fixedly connected to the left side of the filter screen 840, the right side of the sealing baffle 850 is fixedly connected with the filter shell 820 through bolts, a shielding protective screen 860 is fixedly connected between the front side and the rear side of the inner cavity of the air extraction cover 830, a handle is fixedly connected to the front side and the rear side of the left side of the sealing baffle 850, a material blocking plate is fixedly connected to the right side of the conveyor 730, a stable support 900 is fixedly connected to the bottom of the box body 100, and a material receiving shell is arranged at the top of the inner cavity of the stable support 900.

[0033] In addition, the sealing cover 810 can cooperate with the exhaust fan 870 to exhaust the air in the filter shell 820, the air extraction cover 830 can suck the dust generated in the process of separating the building waste particles into the filter shell 820, and the filter screen 840 can filter the dust to prevent it from flying around and polluting the surrounding environment.

[0034] On the other hand, the bolted sealing baffle 850 can be quickly disassembled and installed, facilitating the cleaning or replacement of the filter screen 840 by the workers, the shielding protective screen 860 can prevent large-volume impurities from entering the inside of the filter shell 820, and the handle facilitates the workers to disassemble the sealing baffle 850.

[0035] Further, the stable support 900 can increase the stability of the box body 100 during work, and the material receiving shell can receive the building waste particles.

[0036] The environmental protection type municipal road and bridge engineering waste recycling device and the use method thereof will be further described below in combination with specific embodiments.

[0037] As Figures 1-10As shown, the present application provides an environmentally friendly municipal road and bridge engineering waste recycling device, which comprises a box body 100 and a multiple metal removal assembly 700, the top of the box body 100 is communicated with a feeding shell 200, the two sides of the feeding shell 200 are fixedly connected with hydraulic cylinders 300, the output ends of the opposite sides of the two hydraulic cylinders 300 are all penetrated through the feeding shell 200 and are fixedly connected with crushing jaws 400, a crushing roller 500 is installed between the two sides of the inner cavity of the box body 100, a vibration conveying and dispersing mechanism 600 is arranged at the bottom of the inner cavity of the box body 100, the multiple metal removal assembly 700 comprises a mounting frame 710, the left side of the mounting frame 710 is fixedly connected with the box body 100, a magnetic separation mechanism 720 is arranged at the bottom of the mounting frame 710, a conveyor 730 is fixedly connected with the right side of the box body 100, a vibration and elastic material mechanism 740 is arranged between the front side and the rear side of the inner cavity of the conveyor 730, a eddy current separator 750 is fixedly connected with the bottom of the conveyor 730, a material guide shell 760 is fixedly connected with the bottom of the right side of the box body 100, and a negative pressure adsorption and light impurity stripping mechanism 800 is arranged at the top of the right side of the box body 100.

[0038] The specific settings and effects of the multiple metal removal assembly 700, the vibration conveying and dispersing mechanism 600 and the negative pressure adsorption and light impurity stripping mechanism 800 will be described below.

[0039] As shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 , the multiple metal removal assembly 700 comprises a mounting frame 710, the left side of the mounting frame 710 is fixedly connected with the box body 100, a magnetic separation mechanism 720 is arranged at the bottom of the mounting frame 710, a conveyor 730 is fixedly connected with the right side of the box body 100, a vibration and elastic material mechanism 740 is arranged between the front side and the rear side of the inner cavity of the conveyor 730, a eddy current separator 750 is fixedly connected with the bottom of the conveyor 730, a material guide shell 760 is fixedly connected with the bottom of the right side of the box body 100, and a negative pressure adsorption and light impurity stripping mechanism 800 is arranged at the top of the right side of the box body 100.

[0040] The effect achieved by the whole multiple metal removal assembly 700 is that the mounting frame 710 provides stable support, the magnetic separation mechanism 720 at the bottom can efficiently adsorb and separate the magnetic metals such as iron in the building waste particles, the conveyor 730 then conveys the preliminarily separated materials backward, in this process, the vibration and elastic material mechanism 740 arranged inside continuously bounces the materials to make them in a loose and raised state, which improves the capture rate of small or hidden metal fragments, the eddy current separator 750 at the bottom of the conveyor 730 further effectively separates non-ferrous metals, realizing multiple, efficient and environmentally friendly separation from magnetic to non-magnetic metals.

[0041] As shown in Figure 2 and Figure 3As shown, the vibration conveying and dispersing mechanism 600 comprises a gradient plate 610, a reset mechanism 620 is arranged between the bottom of the gradient plate 610 and the two sides of the inner cavity of the box body 100, the bottom of the gradient plate 610 is fixedly connected with a vibration motor 630, a discharge opening is formed in the right side of the box body 100, the reset mechanism 620 comprises a reset shell 621, the bottom of the reset shell 621 is fixedly connected with the inner wall of the box body 100, the inner cavity of the reset shell 621 is provided with a limiting plate 622, the bottom of the limiting plate 622 is fixedly connected with a reset spring 623, the top of the limiting plate 622 is fixedly connected with a supporting plate 624, and the top of the supporting plate 624 penetrates through the reset shell 621 and is fixedly connected with the gradient plate 610.

[0042] The vibration conveying and dispersing mechanism 600 achieves the effect that the gradient plate 610 provides a bearing surface for conveying and dispersing of the material, the reset mechanism 620 connected to the bottom of the gradient plate 610 provides elastic support and reciprocating motion limiting and guiding for the gradient plate 610 through the limiting plate 622 and the reset spring 623 in the reset shell 621, when the vibration motor 630 is started, the high-frequency exciting force generated thereby drives the gradient plate 610 and the construction waste particles thereon to continuously vibrate under the cooperation of the reset spring 623, which not only effectively scatters the material that may be clumped to make it evenly spread, but also promotes the smooth flow of the material to the discharge opening in the right side of the box body 100, thereby creating uniform and loose material conditions for subsequent metal separation.

[0043] As shown in Figure 9 and Figure 10 As shown, the negative pressure adsorption and light impurity stripping mechanism 800 comprises a sealing cover 810, the left side of the sealing cover 810 is fixedly connected with the box body 100, the top of the right side of the inner cavity of the sealing cover 810 is fixedly connected with a filter shell 820, the bottom of the filter shell 820 is communicated with an air suction cover 830, the right side of the filter shell 820 is communicated with an exhaust fan 870, the inner cavity of the filter shell 820 is provided with a filter screen 840, the left side of the filter screen 840 is fixedly connected with a sealing baffle 850, the right side of the sealing baffle 850 is fixedly connected with the filter shell 820 through bolts, the front side and the rear side of the inner cavity of the air suction cover 830 are fixedly connected with a shielding protective net 860, and the front side and the rear side of the left side of the sealing baffle 850 are both fixedly connected with a handle.

[0044] The whole negative pressure adsorption light impurity stripping mechanism 800 achieves the effect that a relatively closed gas collection space is formed by the sealing cover 810, the filter shell 820 is fixed therein, the bottom of the filter shell 820 is communicated with the exhaust cover 830, the exhaust cover 830 is responsible for absorbing dust generated in a large range in the process of crushing and sorting, and the exhaust fan 870 forms a negative pressure airflow in the system when working, dust-containing air is sucked into the system and filtered through the filter screen 840 in the filter shell 820, clean air is discharged, dust is intercepted, the filter screen 840 is packaged by the sealing baffle 850 fixed by bolts, the design is convenient to disassemble so as to clean or replace the filter screen 840 regularly, dust is effectively inhibited from escaping throughout the process, and the working environment is clean.

[0045] The use method of the environmental protection type municipal road and bridge engineering waste recycling device comprises the following steps: S1, conveying the bridge engineering waste to be recycled to the inside of the feeding shell 200, opening the hydraulic cylinder 300, continuously moving the crushing jaw 400 left and right through the hydraulic cylinder 300, and preliminarily crushing the building waste by the two crushing jaws 400; the crushed building waste enters the inside of the box body 100, and the waste is crushed into particles by the rotating crushing roller 500; and the crushed waste falls above the gradient plate 610; S2, opening the vibration motor 630, generating high-frequency vibration through the working vibration motor 630, continuously vibrating the support plate 624 and the gradient plate 610 through the cooperation of the return spring 623 and the limiting plate 622, and uniformly spreading and conveying the waste particles on the top of the gradient plate 610 to the top of the conveyor 730; S3, opening the magnetic separation conveyor 721 to adsorb the metal fragments in the waste particles conveyed on the top of the conveyor 730, and opening the driving motor 745; the driving motor 745 rotates the cam 747 in cooperation with the rotating shaft 746; the cam 747 continuously presses the vibration plate 743; the vibration plate 743 continuously drives the flexible top rod 744 to press the conveying belt of the conveyor 730 through the cooperation of the sliding rod 7421, the sliding sleeve 7423 and the vibration spring 7422, so that the conveying belt continuously vibrates and lifts the waste particles, and the mixed small metal particles are captured by the magnetic separation conveyor 721; and the metal particles adsorbed by the magnetic separation conveyor 721 are guided to the discharge shell 724 through the guide plate 723 and discharged; S4, conveying the building waste particles after the magnetic separation to the top of the eddy current separator 750 through the conveyor 730; the remaining non-magnetic metal particles, such as aluminum and copper, in the waste particles are discharged into the inside of the guide shell 760 through the eddy current separator 750; the non-magnetic metal is discharged through the guide shell 760; and the remaining waste particles enter the inside of the receiving shell, so that the active separation operation of the metal waste in the building waste recycling process can be automatically completed through the integrated design; S5, in the process of separating metal waste, the exhaust fan 870 is started, the exhaust fan 870 exhausts the air inside the filter shell 820, and the external air carrying the dust generated in the separation and crushing process enters the inner cavity of the exhaust hood 830, the dust is transported to the inside of the filter shell 820 through the exhaust hood 830, the filter screen 840 is used for filtering the dust, the surrounding environment is prevented from being polluted by a large amount of dust generated in the recycling process of the construction waste, and the environmental protection effect is improved.

[0046] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments without departing from the technical scheme of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. An environmentally friendly municipal road and bridge engineering waste recycling device, comprising a box body (100) and a multiple metal removal assembly (700), characterized in that: The top of the box (100) is communicated with a feeding shell (200), both sides of the feeding shell (200) are fixedly connected with hydraulic cylinders (300), the output ends of the two hydraulic cylinders (300) on the opposite sides are all penetrated through the feeding shell (200) and are fixedly connected with crushing jaws (400), the powder crushing roller (500) is installed between the two sides of the inner cavity of the box (100), and the vibration conveying and dispersing mechanism (600) is arranged at the bottom of the inner cavity of the box (100); The multiple metal removal assembly (700) comprises a mounting frame (710), the left side of the mounting frame (710) is fixedly connected with the box (100), the bottom of the mounting frame (710) is provided with a magnetic separation mechanism (720), the right side of the box (100) is fixedly connected with a conveyor (730), the front side and the rear side of the inner cavity of the conveyor (730) are provided with a vibration material ejection mechanism (740), the bottom of the conveyor (730) is fixedly connected with an eddy current separator (750), the bottom of the right side of the box (100) is fixedly connected with a material guide shell (760), and the top of the right side of the box (100) is provided with a negative pressure adsorption light impurity stripping mechanism (800).

2. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 1, characterized in that: The vibration conveying and dispersing mechanism (600) comprises a gradient plate (610), the bottom of the gradient plate (610) and the two sides of the inner cavity of the box (100) are provided with a reset mechanism (620), the bottom of the gradient plate (610) is fixedly connected with a vibration motor (630), and the right side of the box (100) is provided with a discharge opening.

3. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 2, characterized in that: The reset mechanism (620) comprises a reset shell (621), the bottom of the reset shell (621) is fixedly connected with the inner wall of the box (100), the inner cavity of the reset shell (621) is provided with a limiting plate (622), the bottom of the limiting plate (622) is fixedly connected with a reset spring (623), the top of the limiting plate (622) is fixedly connected with a supporting plate (624), and the top of the supporting plate (624) penetrates through the reset shell (621) and is fixedly connected with the gradient plate (610).

4. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 1, characterized in that: The magnetic separation mechanism (720) comprises a magnetic separation conveyor (721), the bottom between the front side and the rear side of the inner cavity of the magnetic separation conveyor (721) is fixedly connected with a magnetic force plate (722), the rear side of the inner cavity of the mounting frame (710) is fixedly connected with a guide plate (723), and the front side of the magnetic separation conveyor (721) is provided with a discharge shell (724).

5. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 1, characterized in that: The vibrating elastic mechanism (740) comprises two fixed frames (741), the opposite sides of the two fixed frames (741) are fixedly connected with the inner wall of the conveyor (730), the opposite sides of the two fixed frames (741) are provided with vibrating plates (743) through limiting mechanisms (742), the top of each vibrating plate (743) is fixedly connected with a flexible top rod (744), the rear side of the conveyor (730) is fixedly connected with a driving motor (745), the front side of the output end of the driving motor (745) penetrates into the inner cavity of the conveyor (730) and is fixedly connected with a rotating shaft (746), and the front side and the rear side of the surface of the rotating shaft (746) are fixedly connected with cams (747).

6. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 5, characterized in that: The limiting mechanism (742) comprises a sliding rod (7421), the top and the bottom of the sliding rod (7421) are fixedly connected with the fixed frame (741), and the surface of the sliding rod (7421) is sequentially sleeved with a vibrating spring (7422) and a sliding sleeve (7423) from top to bottom, and the two sides of the vibrating plate (743) are fixedly connected with the sliding sleeve (7423).

7. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 1, characterized in that: The negative pressure adsorption light impurity stripping mechanism (800) comprises a sealing cover (810), the left side of the sealing cover (810) is fixedly connected with the box body (100), the top of the right side in the inner cavity of the sealing cover (810) is fixedly connected with a filter shell (820), the bottom of the filter shell (820) is communicated with an exhaust cover (830), the right side of the filter shell (820) is communicated with an exhaust fan (870), the inner cavity of the filter shell (820) is provided with a filter screen (840), and the left side of the filter screen (840) is fixedly connected with a sealing baffle (850).

8. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 7, characterized in that: The right side of the sealing baffle (850) is fixedly connected with the filter shell (820) through bolts, the front side and the rear side of the inner cavity of the exhaust cover (830) are fixedly connected with a shielding protective net (860), and the front side and the rear side of the left side of the sealing baffle (850) are fixedly connected with handles.

9. The environmentally friendly municipal road and bridge engineering waste recycling device according to claim 1, characterized in that: The right side of the conveyor (730) is fixedly connected with a material blocking plate, the bottom of the box body (100) is fixedly connected with a stable support (900), and the top of the inner cavity of the stable support (900) is provided with a material receiving shell.

10. The use of an environmentally friendly municipal road and bridge engineering waste recycling device according to any one of claims 1-9, characterized in that: The method comprises the following steps: S1, conveying the bridge engineering waste to be recycled into the inside of the feeding shell (200), starting the hydraulic cylinder (300), controlling the crushing jaw (400) to continuously move back and forth left and right through the hydraulic cylinder (300), preliminarily crushing the building waste by the two crushing jaws (400), and making the crushed building waste enter the inside of the box body (100), then crushing the waste into granular by the rotating crushing roller (500), and making the crushed waste fall above the gradient plate (610); S2, turn on the vibration motor (630), the vibration motor (630) works to produce high-frequency vibration, and the reset spring (623) and the limiting plate (622) cooperate to control the support plate (624) and the gradient plate (610) to vibrate continuously, so that the waste particles on the top are uniformly spread and transported to the top of the conveyor (730), and the waste particles are transported by the conveyor (730); S3, the magnetic separation conveyor (721) is started to work, the metal fragments in the waste particles on the top of the conveyor (730) are adsorbed, and the driving motor (745) is started at the same time, the driving motor (745) cooperates with the rotating shaft (746) to control the cam (747) to rotate, the cam (747) continuously extrudes the vibration plate (743), and through the mutual cooperation of the slide rod (7421), the slide sleeve (7423) and the vibration spring (7422), the vibration plate (743) continuously drives the flexible top rod (744) to extrude the conveyor belt of the conveyor (730), so that the conveyor belt continuously vibrates and lifts the waste particles, and the mixed small metal particles are captured by the magnetic separation conveyor (721), and the metal particles adsorbed by the magnetic separation conveyor (721) are guided to the discharge shell (724) by the guide plate (723); S4, the waste particles after magnetic separation are conveyed to the top of the eddy current separator (750) by the conveyor (730), and the remaining non-magnetic metal particles such as aluminum, copper and other metal particles in the waste particles are discharged to the inside of the guide shell (760) by the eddy current separator (750), and the non-magnetic metal particles are discharged through the guide shell (760), and the remaining waste particles enter the inside of the receiving shell, and through the integrated design, the active separation operation of metal waste in the building waste recycling process can be automatically completed; S5, in the process of separating metal waste, turn on the exhaust fan (870), the exhaust fan (870) discharges the air in the filter shell (820), and at the same time, the external air carrying the dust generated in the separation and crushing process enters the inner cavity of the exhaust hood (830), the dust is transported to the inside of the filter shell (820) by the exhaust hood (830), and the dust is filtered by the filter screen (840), so as to avoid the pollution of a large amount of dust generated in the recycling process of building waste to the surrounding environment, and improve the environmental protection effect. ​

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